Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Stevenson, WA

Enter your ZIP and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Stevenson, WA?

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Stevenson

Avatar for Alpha Environmental Services Inc

Alpha Environmental Services Inc

4.72(
109
)
Approved Pro

Alpha Environmental Services Inc

4.72(
109
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
64 local quotes requested

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025

We are a residential and commercial environmental consulting and remediation company. Serving the greater Portland, OR, area for over 20 years, we have the experience and knowledge to handle just about anything. We offer a variety of services from mold assessment and remediation to radon testing and mitigation and tank services. We provide project oversight and technical review for projects big and small. This includes site analysis, mold assessment, and the remediation of toxins. We also offer a full range of heating oil tank services, from checking underground leaks to installing above ground storage tanks (ASTs). Our residential and commercial services include: • Environmental consulting and remediation • Environmental site assessment • Groundwater remediation • Habitat restoration • Mold testing and removal • Asbestos, radon and lead testing and inspection • Dry well sampling • Phase I & II environmental site assessments • Underground tank sampling • Vapor mitigation systems Environmental risk is an important and complex issue. Whether your concern is toxic mold or radon testing, Alpha Environmental Services can develop an environmental or engineering due-diligence solution that fits your individual needs. We are fully licensed and committed to your environmental needs. Call today for a free estimate and to schedule an appointment.

"I hired Alpha Environmental to do a tank search. They were punctual and helpful, beyond the scope of their visit. They're easy to work with and they accommodated unusual invoicing request."

Ramona M on June 2025


Avatar for Gorge Quality Home Inspection

Gorge Quality Home Inspection

5.00(
3
)

Gorge Quality Home Inspection

5.00(
3
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Gorge Quality Home Inspection gorgequaulityhomeinspection.com offers unbiased, dependable, and non-invasive home inspection services and radon testing to the Columbia River Gorge and the greater Portland and Vancouver metro areas. We strive to be an asset to every client who comes our way, adhering to InterNACHI’s excellent Standards of Practice so that the quality of our service is never in question. We don’t settle for a run of the mill home inspection, and neither should you when you contract with us to perform a home inspection, you’ll enjoy flexible scheduling, top quality customer service, and the most accurate home inspection available. Safety should always be a priority, and we’ll work diligently to make sure that your home is safe and sound, meticulously assessing even the most minute details to check for dangerous defects. We go the extra mile for our clients and do everything we can to take the stress out of your experience. Gorge Quality Home Inspection is a veteran owned and operated business. Greg Felten takes great pride in putting out a consistently high-quality product, eliminating uncertainty and stress by providing a friendly and knowledgeable service that is centered around the success of every client. One of Greg’s primary motivators for doing home inspection work is being able to play an important role in taking care of the people in our local communities. This of course includes prospective newcomers to the area because buying a home is a difficult process, no matter who you are or where you come from.

"It was great. They were a ten out of ten."

John D on May 2022

Gorge Quality Home Inspection gorgequaulityhomeinspection.com offers unbiased, dependable, and non-invasive home inspection services and radon testing to the Columbia River Gorge and the greater Portland and Vancouver metro areas. We strive to be an asset to every client who comes our way, adhering to InterNACHI’s excellent Standards of Practice so that the quality of our service is never in question. We don’t settle for a run of the mill home inspection, and neither should you when you contract with us to perform a home inspection, you’ll enjoy flexible scheduling, top quality customer service, and the most accurate home inspection available. Safety should always be a priority, and we’ll work diligently to make sure that your home is safe and sound, meticulously assessing even the most minute details to check for dangerous defects. We go the extra mile for our clients and do everything we can to take the stress out of your experience. Gorge Quality Home Inspection is a veteran owned and operated business. Greg Felten takes great pride in putting out a consistently high-quality product, eliminating uncertainty and stress by providing a friendly and knowledgeable service that is centered around the success of every client. One of Greg’s primary motivators for doing home inspection work is being able to play an important role in taking care of the people in our local communities. This of course includes prospective newcomers to the area because buying a home is a difficult process, no matter who you are or where you come from.

"It was great. They were a ten out of ten."

John D on May 2022


Avatar for Bear Home Inspection LLC

Bear Home Inspection LLC

No reviews yet

Bear Home Inspection LLC

No reviews yet
Free onsite estimate

With extensive experience and understanding in commercial and residential construction, Bear Home Inspection knows what to look for. We specialize in giving a thorough inspection and a comprehensive inspection report.

With extensive experience and understanding in commercial and residential construction, Bear Home Inspection knows what to look for. We specialize in giving a thorough inspection and a comprehensive inspection report.


Avatar for Olimpia's Touch of Class

Olimpia's Touch of Class

5.00(
9
)

Olimpia's Touch of Class

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Specializing in Housecleaning! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"Great and smiley service. Olimpia and crew does very detail service. Every 2 weeks she clean my house. I’m happy to come home now"

MELIH O on February 2021

Specializing in Housecleaning! We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today!

"Great and smiley service. Olimpia and crew does very detail service. Every 2 weeks she clean my house. I’m happy to come home now"

MELIH O on February 2021


Avatar for Nonprofit Home Inspections

Nonprofit Home Inspections

5.00(
7
)

Nonprofit Home Inspections

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We offer comprehensive home inspections that meet Oregon and Washington's Standards of Practice for home inspections. Our licensed home inspectors are also previous general contractors and are able to give you additional insight into the true state of your home. We include thermal imaging free with all of our home inspections.

"Teman Montgomery was totally professional; extremely knowledgeable, forthcoming about his observations, and intensely thorough. He arrived early to orient this buyer as to the procedure, and then methodically and with great care explained in common language the details as he worked through the house. After receiving and reviewing his report, with copious photos and recommendations for attention/repairs of defects he found, I am blown away by the whole process and would recommend this company to everyone who is looking for a detail oriented inspector with a stellar work ethic. Wow."

Susan F on June 2018

We offer comprehensive home inspections that meet Oregon and Washington's Standards of Practice for home inspections. Our licensed home inspectors are also previous general contractors and are able to give you additional insight into the true state of your home. We include thermal imaging free with all of our home inspections.

"Teman Montgomery was totally professional; extremely knowledgeable, forthcoming about his observations, and intensely thorough. He arrived early to orient this buyer as to the procedure, and then methodically and with great care explained in common language the details as he worked through the house. After receiving and reviewing his report, with copious photos and recommendations for attention/repairs of defects he found, I am blown away by the whole process and would recommend this company to everyone who is looking for a detail oriented inspector with a stellar work ethic. Wow."

Susan F on June 2018


Cascade Radon Inc

4.94(
157
)

Cascade Radon Inc

4.94(
157
)
Customers say: Super punctual
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021

The Northwest's most experienced firm. Residential and commercial radon testing, mitigation, and system design for homes, schools, businesses. Radon-resistant design for new homes. We have been EPA-certified for over 25 years. Award winning. Radon is not a secondary endeavor for us… it’s all we do.

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."

Claude S on April 2021


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Radon Detection and Reduction questions, answered by experts

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

DIY kits are available for basic testing. Professional services provide comprehensive results and recommendations.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

A radon test has no effect on humans—only the radon in the air does. The test does not redistribute the radon that is already present so yes, it’s safe to be around the testing kit even if it isn’t safe to be in the room itself. The test absorbs and measures the radon, but doesn't absorb enough of it to make the room any safer.

The Stevenson, WA homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"